* {
  padding: 0px;
  margin: 0px;
}

body,
html {
  width: 100%;
  height: 100%;
}

.header{
	width: 100%;
	height: 500px ;
	background-color: brown;
}

/*nav区域*/
.header>div:nth-child(1){
	width: 100%;
	height:70px;
	background-color: rgba(0,0,0,0.7);
	position: relative;
	z-index: 1;
}
.header>div>nav{
	margin: 0 auto;
	width:990px;
	height:70px;
}

.header>div>nav>img{
	float: left;
}
  
.header>div>nav>div{
	float: left;
}

.header .list{
	width: 135px;
	margin-top: 15px;
	overflow: hidden;
}

.header .list>span{
	display: block;
	color: greenyellow;
	font-size: 24px;
	height: 25px;
	width: 135px;
	background:url(../imgWxxy/angle.png) no-repeat 115px 16px;
	padding-bottom: 15px;
	padding-left:7px ;
	border-left:1px solid black ;
}

.header .list>ul{
	display: none;
}

.header .list:hover>ul{
	display: block;
}
.header .list:hover{
	background-color: rgba(0,0,0,0.5);
}

.header .list>ul>li{
	list-style: none;
	color: white;
	font-size: 24px;
	height: 25px;
	width: 135px;
	padding-bottom: 15px;
	padding-left:7px ;
}
.header .list>ul>li:hover{
	 color: greenyellow;
	 background-color: rgba(0,0,0,0.9);
}


.header>div>nav>div:nth-of-type(2){
	float: right;
	position: relative;
	height: 70px;
	width: 430px;
	text-align: center;
	line-height: 70px;
}

.header>div>nav>div:nth-of-type(2)>input{
	width:380px ;
	height: 35px;
	position: absolute;
	top: 50%;
	left: 0;
	transform: translateY(-50%);
	border: none;
	outline: none;
	background-color: gainsboro;
	padding-left: 10px;
}

.header>div>nav>div:nth-of-type(2)>span{
	display: inline-block;
	width:50px ;
	height: 35px;
	background: url(../imgWxxy/search.png) no-repeat center;
	background-color: greenyellow;
	position: absolute;
	top: 50%;
	right: 0;
	transform: translateY(-50%);
}


.header>div:nth-child(2){
	width: 100%;
	height: 35px;
	background-color: greenyellow;
	/*absolute：兄弟元素影响不到自己。*/
	position: absolute;
}

.header>div:nth-child(2)>ul{
	width: 990px;
	height: 35px;
	margin: 0 auto;
}
.header>div:nth-child(2)>ul>li{
	float: left;
	list-style: none;
  padding: 0px 15px;
	height: 20px;
	text-align: center;
	line-height: 20px;
	border-right: 1px solid grey;
  color: black;
  margin: 7.5px 0px;
 /*background-color: blue;*/
}
.header>div:nth-child(2)>ul>li:nth-child(1)>a{
	display: inline-block;
	width: 13px;
	height: 13px;
	background: url(../imgWxxy/home.png);
	margin-right: 5px;
}

/* 
   由于自己的宽度不知道。所以hover 背景变色不能使用其他标签。
   但是，由于右边又有边框。边框控制了宽度。所以背景变色不能铺满。
   最后使用，修改自身的高度，同时修改自己的背景做到。
 */
.header>div:nth-child(2)>ul>li:hover{
	background-color: rgba(0,0,0,0.4);
	/*防止，宽度变化*/
	border-right:1px  solid rgba(0,0,0,0);
	margin:0;
	height: 35px;
	line-height: 35px;
}

.container{
	width: 100%;
	height: 320px;
	background-color: gainsboro;
}

.footer{
  /*border: 26px solid blue;	
	border-image: url(../imgWxxy/angle2.png) 26  round;*/
	width: 100%;
	height: 520px;
  background: url(../imgWxxy/home6.jpg) no-repeat center 223px;
  background-color: rgb(70,80,90);
  /*background-size: 100% 520px;*/
  position: relative;
  
}
 
.footer>div{
	width: 100%;
	height: 110px;
	background-color: rgb(50,60,70);
	position: absolute;
	bottom: 0;
}
